[Drake] TR-7 to amp question

[Garey Barrell]

The relay in the TR-7 is rated for 2A typical, 3A maximum, and 115 VAC,
so should handle most any amplifier.  Unlike most "modern" rigs, the
relay in the TR-7 is standard, readily available and plugs in.  They
cost about $15 if you need a new one.  The imported rigs typically use
small, PC board soldered reed relays that are three or four layers
down!  NOT so easy to repair/replace if they get fried.

That said, an interface can't hurt.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>



Ed Purvis wrote:
>     Which contacts on TR-7 can control the keying
>  of linear amplifier?  I can build a buffer relay
>  if needed, or Ampkeyer would be ideal.
>
>     My copy of schematic is fuzzy and I am not 
>  using the PS-7 power supply which has the con-
>  tacts for keying.
>
>     Many thanks to all for the great help in the
>  past.
>                         Ed Purvis
>                         Bradenton, Fl
>
>                     
>
> Ed Purvis WA4NJY
>         Amateur radio since
>          1963, tube-type most
>          of the time.
>
>